Aedilite
钠沸石
🗣️ 情景例句
A real dilemma.
一个大伤脑筋的事。
Small gains bring great wealth.
小益聚大财，薄利成巨富。
and if a single curved glass would distort nature, how much more would a pair of them?
何况一片曲面镜就可歪曲自然，那么伽利略的两片曲面镜对自然的歪曲又该多大呢？